Awesome Filter

pretty good filter. not having to replace it is a plus. although you will have to purchase the refresher kit to wash/clean it every year or so. This Air filter was about $46.00 refresher kit $15.00. Replaceable filter is about around $10, so if you replace it every year (which is quite frequent) it would be around 6 years till you break even. so yea... its an investment

Instant ponies

Mazda's non-turbo cx-7's are pretty unimpressive as far as HP is concerned. Adding this K&N filter did help. The stock 0-60 time was 9.3 sec, with the filter I timed it at 8.1. It seems like a big gain but keep in mind it is still 8+ seconds to get to 60. The most noticeable gain I noticed is at highway speeds when passing. As an added bonus, 3 more mpg's.
I use K&N's in every vehicle I have had including my 2011 Dodge Ram ( I installed the full cold air intake on it ).

User 1

The instilation took 5 minutes. Instantly I noticed a difference in lower RPM's and there were smoother transitions from gear to gear. I also noticed a gain in Miles per Gallon, my 07 Mazda gained 2.5 miles/gallon.

Great Value

The high-flow air filter seems to have given the car a modest boost in power and fuel efficiency, but the result I'm most please with is that the very pronounced pre-ignition (knocking and pinging) that I have experienced on my high-mileage Mazda 6 has all but disappeared. I'm very pleased with the product and will continue to be a loyal customer of K&N air filter products.

CX-7 K&N Filter

CX-7 is rated at 17 - 20 mpg, with the REAL mileage rated at 14 - 17. With the K&N filter I just got 19.6 mpg! Performance appears even snappier than before the K&N filter was installed. Very easy drop-in installation. Will easily safe money in a short period of time by not having to replace the paper filters often.

Great Product

This K&N filter is great. I had it for about 2 weeks and can already notice difference. Not that it added extra mileage, but i can feel extra horse power too. Thanks AutoAnything for fast shipping too, I had it at my door in a couple of days.

K&N on Mazda CX-7

There is a lot I want to do to this car to improve its performance, this was a great place to start. A very simple investment in the K&N filter made a noticeable difference in the overall performance of my vehicle. A small increase in power, better (smoother) transition between gears and gas mileage as gone up.

Great Product, Great Price

We recently bought a K&N air filter locally for over $60. Having come up empty for one for my car and refusing to pay $25+ for another short term filter, I went online and found mine for much less money -- great price & free shipping. Perfect. Arrived quickly and installed easily. My last air filter for this car.

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